Tried turning off the T/C and the problem did not change.
If the truck is going down a hill the problem doesn't seem to show up as much or at all. If the road is level or the SSR is going up a hill the shifting problem happens with with only a moderate amount of acceleration.
I demonstrated this problem on Wednesday to one of the techs at the dealership and they were to research the TSB I located at NHTSA website that mentions shifting problems.
The service manager was in a mood today that's for sure.
He stated that they were waiting for me to make an appointment. I cannot believe the nasty attitude they been taking with me lately. I asked whether they had researched the TSB and he stated that their tech needs the truck first. I then reminded him that there have been several issues with my SSR that have been documented via TSBs and they've ignored them until I point them out. If they were going to do nothing on Wednesday they should have simply stated "let's make an appointment for another day since we're swamped right sow".